deprecates old tip receive flow

[owocki]

deprecates old tip receive flow, v1 and v2, which aren't used anymore.

[codecov]

Codecov Report

Merging #2027 into master will increase coverage by 0.13%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #2027      +/-   ##
==========================================
+ Coverage   25.33%   25.47%   +0.13%     
==========================================
  Files         132      132              
  Lines       10904    10827      -77     
  Branches     1459     1451       -8     
==========================================
- Hits         2763     2758       -5     
+ Misses       8064     7992      -72     
  Partials       77       77

Impacted Files	Coverage Δ
app/dashboard/tip_views.py	21.17% <ø> (+2.57%)	⬆️
app/app/urls.py	85.71% <ø> (ø)	⬆️
app/dashboard/models.py	48.22% <0%> (+1.11%)	⬆️

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[mbeacom]

Testing on staging - I'll merge if everything is 💚

[mbeacom]

Everything seems fine on stage. Merging!